9 days, 8 nights, May 24-June 1, 2019. Highlights: In London, ENGLAND, Chelsea Flower Show, Thames River cruise/transfer via Calais to Amsterdam, NETHERLANDS, for Aalsmeer Flower Auction, village of Volendam/in Bruges, BELGIUM, 16th-century gabled houses, Basilica of the Holy Blood/in FRANCE, Paris, Loire Valley, gardens of Versailles and Giverny. From $3,250 ppdo. Single supp., $1,311. Insight Vacations (Rye, NY; 888/971-6788, www.insightvacations.com).