Illustrated greeting cards to inspire your next adventure. Explore the delicious, unique, and historic corners of London and beyond through beautifully illustrated maps. London Block by Block greeting cards are more than just cards, they are days out with friends, family outings, and memories waiting to be made. Each card features a beautifully illustrated map that offers alternative ways to explore London. Find the best bakeries, bookshops, desserts, and more. The perfect cards to plan an adventure or reminisce.