Today: Promoting cycling in the Tweed Valley, the Tweed Love Bike Week comprises guided routes, informal rides, cross-country races and more; until 19 June ( In London, Open Garden Squares weekend invites visitors into private gardens and squares across the capital (

This week: In Florence, a new exhibition at the Uffizi gallery opens on Tuesday celebrating the 500th anniversary of the birth of Giorgio Vasari. It explores his relationship with Cosimo the Medici duke and the construction of the Uffizi gallery; until 30 October ( Further afield, the Essque Zalu Zanzibar hotel opens on the north-east coast of this tropical Tanzanian island on Wednesday ( Back in Europe, the Prague Quadrennial launches on the same day, with 10 days of art, design, fashion, architecture and new media (

In the diary: Etihad Airways's new route to the Seychelles, from 1 November, offers a one-stop route from Heathrow or Manchester via Abu Dhabi to this idyllic archipelago (