Vintage Bus Tour of London Including Westminster Abbey and Thames River Cruise. Spend a half day exploring the highlights of London by vintage Routemaster bus and river boat! On this fun 5.5-hour excursion, you’ll view top attractions like Big Ben and the Houses of Parliament. Then hop aboard a Thames River cruise for a float past Tower Bridge and the imposing Tower of London. Conclude with a stop at UNESCO-listed Westminster Abbey, the breathtaking Gothic cathedral famed at the site of numerous royal weddings and coronations. Book and Save 10%: Vintage Bus Tour of London Including Westminster Abbey and Thames River Cruise.