• Europe’s tallest building marks the completion of its exterior structure today with a spectacular light show. The Shard, a £450 million development located over London Bridge Station in Southwark, stands 310 metres tall and was designed by Italian architect Renzo Piano. The controversial glass clad structure, work on which commenced in 2009, features a jagged top with the design reportedly referencing the city’s many church spires. While the exterior of the building is now complete, work is expected to continue on the building’s interior – which will contain offices, luxury shops and restaurants, a five star hotel and 10 top-end apartments (the highest in the UK) – until next year. It is expected that the building’s viewing decks – which offer panoramic 360 degree views over the city – will become a major new tourist attraction in the city. The Shard will be formally opened today by Qatari Prime Minister Hamad bin Jassem al-Thani and Prince Andrew, Duke of York. The hour long light show, which features lasers and searchlights, kicks off at 10pm and those who can’t see it in person can watch it streamed live at the-shard.com.

• A skeleton from the St Bethlehem Burial Ground and 55 million-year-old fragments of amber are among the artefacts which will go on display this Saturday at a special public exhibition of archaeological discoveries made during the construction of Crossrail. Almost 100 objects found at 10 different sites will be in the Bison to Bedlam – Crossrail’s archaeology story so far exhibition which marks the halfway point of the Crossrail archaeology program, first launched in 2009. Finds have dated from prehistoric times through to the Industrial Revolution and, as well as those aforementioned, also include some medieval ceramic wig curlers, 17th century gravestone markers and stakes made out of animal bone. All the items will be eventually donated to the Museum of London or Natural History Museum. The exhibition will be held from 10am to 5pm this Saturday at the Music Room, Grays Antiques, 26 South Molton Street (nearest Tube station is Bond Street). For more, see www.crossrail.co.uk.

• Alderman Jeffrey Evans (Ward of Cheap) and Nigel Pullman have been elected the new sheriffs of the City of London in a poll held late last month. The office of the sheriffs dates back to the Middle Ages – current duties include assisting the Lord Mayor of London in his official duties and attending sessions of the Central Criminal Court at the Old Bailey. The two new sheriffs take up their post in late September.

• On Now: Blackpool: Wonderland of the World. A new exhibition held in the Quadriga Gallery at the Wellington Arch, Hyde Park Corner, this looks at how Blackpool transformed in the 19th century from a small village to become became the first resort in the world to cater for the working classes. Focusing on two of the town’s key attractions – the Winter Gardens and the Blackpool Tower – the exhibition’s highlights include a silver model of Blackpool Tower dating from 1893, rare Victorian and vintage posters advertising performances by some of the stars who shone there, and early 20th century photographs of the interiors of the Winter Gardens. In addition, two crowns will illuminate the top of Wellington Arch in a taste of Blackpool’s famous light show. Organised by English Heritage in partnership with Blackpool Council, it runs until 27th August. Admission fee applies. See www.english-heritage.org.uk/daysout/properties/wellington-arch/exhibitions-at-the-arch/current-exhibition/ for more.